Re: [PATCH net-next 1/3] dt-bindings: net: realtek,rtl9301-mdio: Add clock-frequency
From: Andrew Lunn <andrew@lunn.ch>
Date: 2026-09-03 12:30:15
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linux-devicetree
On Thu, Sep 03, 2026 at 02:21:17PM +0200, Markus Stockhausen wrote:
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The Realtek Otto Switch ethernet MDIO controller supports different MDC speeds ranging from 1.25MHz to 10MHz. Document the clock-frequency attribute for the device tree. There is neither an offical documentation nor any obvious registers that indicate a dependency to one of the hardware clocks. The usable setup bits are more like hardcoded values than dividers. Without further details do not add a clock reference. Signed-off-by: Markus Stockhausen <redacted> --- .../devicetree/bindings/net/realtek,rtl9301-mdio.yaml | 3 +++ 1 file changed, 3 insertions(+)diff --git a/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml b/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml index 67e0b23a8470..6db3315ce96b 100644 --- a/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml +++ b/Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml@@ -56,6 +56,9 @@ patternProperties: reg: maxItems: 1 + clock-frequency: + default: 2500000
Please list the supported values. The fact this is messy, different devices supporting different frequencies, makes the validation more important. Andrew